单项选择题

When two fire hose teams are attacking a fire they should（）.

A.use different fire hose pressures
B.use fire hoses of different sizes
C.not attack the fire from opposite sides
D.not wear protective clothing

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When towing astern what equipment should be stowed ready for use near the towline?（）

A.First aid kit
B.Axe or cutting torch
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When should a fire be ventilated?（）

A.When attacking the fire directly
B.When using a steam smothering system
C.When using the fixed CO₂ system
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A.Blanket the cargo spill with foam
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D.Shut off the transfer of cargo